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CERN Document Server 11 records found  1 - 10próximo  jump to record: Search took 0.60 seconds. 
1.
CP-violating phases in neutral meson oscillations / Van Eijk, Daan (NIKHEF, Amsterdam) /LHCb
LHCb is one of the four large experiments at the Large Hadron Collider (LHC) at CERN, Geneva, Switzerland and is dedicated to heavy flavour physics. LHCb searches for New Physics (NP) by performing precision measurements of CP-violating parameters. [...]
2012 - 6 p. - Published in : Nucl. Phys. B, Proc. Suppl. 233 (2012) 84-89
In : 10th International Conference on Beauty Charm Hyperons in Hadronic interactions, Wichita, KS, USA, 23 - 28 Jul 2012, pp.84-89
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2.
Searches for $\Lambda^0_{b}$ and $\Xi^{0}_{b}$ decays to $K^0_{\rm S} p \pi^{-}$ and $K^0_{\rm S}p K^{-}$ final states with first observation of the $\Lambda^0_{b} \rightarrow K^0_{\rm S}p \pi^{-}$ decay / LHCb collaboration
A search for previously unobserved decays of beauty baryons to the final states $K^0_{\rm\scriptscriptstyle S} p \pi^{-}$ and $K^0_{\rm\scriptscriptstyle S}p K^{-}$ is reported. The analysis is based on a data sample corresponding to an integrated luminosity of $1.0\,$fb$^{-1}$ of $pp$ collisions. [...]
arXiv:1402.0770; LHCB-PAPER-2013-061; CERN-PH-EP-2014-012; LHCB-PAPER-2013-061; CERN-PH-EP-2014-012.- Geneva : CERN, 2014 - 24 p. - Published in : JHEP 04 (2014) 087 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP; Springer Open Access article: PDF;
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3.
Updated measurements of exclusive $J/\psi$ and $\psi(2S)$ production cross-sections in $pp$ collisions at $\sqrt{s}=7$ TeV / LHCb collaboration
The differential cross-section as a function of rapidity has been measured for the exclusive production of $J/\psi$ and $\psi(2S)$ mesons in proton-proton collisions at $\sqrt{s}=7$ TeV, using data collected by the LHCb experiment, corresponding to an integrated luminosity of 930 pb$^{-1}$. The cross-sections times branching fractions to two muons having pseudorapidities between 2.0 and 4.5 are measured to be $$\begin{array}{rl} \sigma_{pp\rightarrow J/\psi\rightarrow{\mu^+}{\mu^-}}(2.0<\eta_{\mu^\pm }<4.5)=&291\pm 7\pm19 {\rm \ pb},\\ \sigma_{pp\rightarrow\psi(2S)\rightarrow{\mu^+}{\mu^-}}(2.0<\eta_{\mu^\pm}<4.5)=&6.5\pm 0.9\pm 0.4 {\rm \ pb},\end{array}$$ where the first uncertainty is statistical and the second is systematic. [...]
arXiv:1401.3288; CERN-PH-EP-2013-233; LHCB-PAPER-2013-059; CERN-PH-EP-2013-233; LHCB-PAPER-2013-059.- Geneva : CERN, 2014 - 20 p. - Published in : J. Phys. G 41 (2014) 055002 Fulltext: PDF; IOP Open Access article: PDF; Related data file(s): TAR; External link: Preprint
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4.
Observation of associated production of a $Z$ boson with a $D$ meson in the forward region / LHCb collaboration
A search for associated production of a $Z$ boson with an open charm meson is presented using a data sample, corresponding to an integrated luminosity of $1.0\mathrm{fb}^{-1}$ of proton--proton collisions at a centre-of-mass energy of 7 TeV, collected by the LHCb experiment. Seven candidate events for associated production of a $Z$ boson with a $D^0$ meson and four candidate events for a $Z$ boson with a $D^+$ meson are observed with a combined significance of 5.1 standard deviations. [...]
arXiv:1401.3245; CERN-PH-EP-2013-235; LHCB-PAPER-2013-062; CERN-EP-2013-235; CERN-PH-EP-2013-235; LHCB-PAPER-2013-062.- Geneva : CERN, 2014 - 17 p. - Published in : JHEP(2014)091 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP; Springer Open Access article: PDF; Supplementary Related data file(s): ZIP; External link: Preprint
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5.
Studies of beauty baryon decays to $D^0 ph^-$ and $\Lambda_c^+ h^-$ final states / LHCb collaboration
Decays of beauty baryons to the $D^0 p h^-$ and $\Lambda_c^+ h^-$ final states (where $h$ indicates a pion or a kaon) are studied using a data sample of $pp$ collisions, corresponding to an integrated luminosity of 1.0 fb$^{-1}$, collected by the LHCb detector. The Cabibbo-suppressed decays $\Lambda_b^0\to D^0 p K^-$ and $\Lambda_b^0\to \Lambda_c^+ K^-$ are observed and their branching fractions are measured with respect to the decays $\Lambda_b^0\to D^0 p \pi^-$ and $\Lambda_b^0\to \Lambda_c^+ \pi^-$. [...]
arXiv:1311.4823; CERN-PH-EP-2013-207; LHCB-PAPER-2013-056; CERN-PH-EP-2013-207; LHCB-PAPER-2013-056.- Geneva : CERN, 2014-02-13 - 15 p. - Published in : Phys. Rev. D 89 (2014) 032001 APS Open Access article: PDF; Fulltext: PDF; Related data file(s): ZIP; Related supplementary data file(s): ZIP; External link: Preprint
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6.
Study of forward Z+jet production in pp collisions at $\sqrt{s}$ = 7 TeV / LHCb collaboration
A measurement of the $Z(\rightarrow\mu^+\mu^-)$+jet production cross-section in $pp$ collisions at a centre-of-mass energy $\sqrt{s} = 7$ TeV is presented. The analysis is based on an integrated luminosity of $1.0\,\text{fb}^{-1}$ recorded by the LHCb experiment. [...]
arXiv:1310.8197; LHCB-PAPER-2013-058; CERN-PH-EP-2013-198; LHCB-PAPER-2013-058; CERN-PH-EP-2013-198.- Geneva : CERN, 2014-01 - 22 p. - Published in : JHEP 01 (2014) 033 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP; Springer Open Access article: PDF; Supplementary Related data file(s): ZIP; External link: Rivet analyses reference
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7.
Measurement of CP violation in the phase space of $B^{\pm} \rightarrow K^{+} K^{-} \pi^{\pm}$ and $B^{\pm} \rightarrow \pi^{+} \pi^{-} \pi^{\pm}$ decays / LHCb collaboration
The charmless decays $B^{\pm} \rightarrow K^{+}K^{-}\pi^{\pm}$ and $B^{\pm} \rightarrow \pi^{+}\pi^{-}\pi^{\pm}$ are reconstructed in a data set, corresponding to an integrated luminosity of 1.0 fb$^{-1}$ of pp collisions at a center-of-mass energy of 7 TeV, collected by LHCb in 2011. The inclusive charge asymmetries of these modes are measured to be $A_{CP}(B^{\pm} \rightarrow K^{+}K^{-}\pi^{\pm}) =-0.141 \pm 0.040 (stat) \pm 0.018 (syst) \pm 0.007 (J/\psi K^{\pm})$ and $A_{CP}(B^{\pm} \rightarrow \pi^{+}\pi^{-}\pi^{\pm}) = 0.117 \pm 0.021 (stat) \pm 0.009 (syst) \pm 0.007 (J/\psi K^{\pm})$, where the third uncertainty is due to the CP asymmetry of the $B^{\pm} \rightarrow J/\psi K^{\pm}$ reference mode. [...]
arXiv:1310.4740; LHCB-PAPER-2013-051; CERN-PH-EP-2013-190; LHCB-PAPER-2013-051; CERN-PH-EP-2013-190.- Geneva : CERN, 2014-01-07 - 8 p. - Published in : Phys. Rev. Lett. 112 (2014) 011801 APS Open Access article: PDF; Fulltext: PDF; Related data file(s): ZIP; External link: Preprint
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8.
Search for the rare decay $D^0 \to \mu^+ \mu^-$ / LHCb collaboration
A search for the rare decay $D^0 \to \mu^+ \mu^-$is performed using a data sample, corresponding to an integrated luminosity of 0.9 fb$^{-1}$, of $pp$ collisions collected at a centre-of-mass energy of 7 TeV by the LHCb experiment. The observed number of events is consistent with the background expectations and corresponds to an upper limit of ${\cal B}(D^0 \to \mu^+ \mu^-) < 6.2(7.6) \times 10^{-9}$ at 90% (95%) confidence level. [...]
arXiv:1305.5059; CERN-PH-EP-2013-083; LHCB-PAPER-2013-013; CERN-PH-EP-2013-083 LHCb-PAPER-2013-013; CERN-PH-EP-2013-083; LHCB-PAPER-2013-013.- 2013-08-09 - 22 p. - Published in : Phys. Lett. B 725 (2013) 15-24 APS published version, local copy: PDF; Elsevier Open Access article: PDF; Fulltext: 1305.5059 - PDF; arXiv:1305.5059 - PDF; Related data file(s): ZIP; External link: Preprint
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9.
Ageing and the Decay of Beauty : Radiation Hardness of the LHCb Outer Tracker and Time-Dependent CP Violation using $B^{0}_{s} \to J/\psi\phi$ / van Eijk, Daan
CERN-THESIS-2012-137 - 178 p.

Fulltext - CERN library copies
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10.
CP violating phases in neutral meson oscillations / Van Eijk, Daan (Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands)
LHCb-TALK-2012-237.- Geneva : CERN, 2012 - 47. Fulltext: PDF;
In : 10th International Conference on Beauty Charm Hyperons in Hadronic interactions, Wichita, KS, USA, 23 - 28 Jul 2012
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